It’s a pretty small segment. You want a CPU that lives enough in the consumer segment to support a modern iGPU and media transcoding features, and in the server space to support ECC. That means an I3 or a base Xeon targeted to the low end workstation market. In my experience that result in system boards with extra junk you don’t want (lo quality NIC, audio/RGB, overclocking/USB overload) and less of the stuff you do (more SATA/NVME, PCIE multi lane slots, quality fast NIC, ECC. RAM slots, low power usage)